JPS5769917A - Negative feedback amplifier - Google Patents
Negative feedback amplifierInfo
- Publication number
- JPS5769917A JPS5769917A JP14708180A JP14708180A JPS5769917A JP S5769917 A JPS5769917 A JP S5769917A JP 14708180 A JP14708180 A JP 14708180A JP 14708180 A JP14708180 A JP 14708180A JP S5769917 A JPS5769917 A JP S5769917A
- Authority
- JP
- Japan
- Prior art keywords
- capacitor
- amplifier
- impedance
- stage amplifier
- equalizer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Amplifiers (AREA)
Abstract
PURPOSE: To increase the maximum output and stability at high frequencies and to improve the distortion characteristics, by connecting a capacitor between a low impedance output terminal of the 1st stage amplifier and an input terminal of the final stage amplifier which performs impedance conversion and in which the gain is at 0 dB.
CONSTITUTION: An equalizer amplifier of RIAA characteristics consists of basic amplifiers 1, 2 and a buffer amplifier 3 in common use for impedance conversion. A signal is transmitted to an input terminal of the buffer amplifier 3 from a low impedance output terminal such as emitter of the 1st stage amplifier 1 via a capacitor 1. Then, as the input signal reaches high frequencies, an equalizer impedance 4 is smaller, then a closed loop gain approaches 0 dB and the potential across the capacitor C1 is made equal. Then, the deterioration in through-rate due to the capacitor C1 can be avoided.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14708180A JPS5769917A (en) | 1980-10-21 | 1980-10-21 | Negative feedback amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14708180A JPS5769917A (en) | 1980-10-21 | 1980-10-21 | Negative feedback amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5769917A true JPS5769917A (en) | 1982-04-30 |
Family
ID=15422032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14708180A Pending JPS5769917A (en) | 1980-10-21 | 1980-10-21 | Negative feedback amplifier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5769917A (en) |
-
1980
- 1980-10-21 JP JP14708180A patent/JPS5769917A/en active Pending
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